Tie brace for concrete forms



Feb. 2G, 1923.

R. A. MCHALE TIE BRACE FOR CONCRET FORMS Flld Jan. 4, 1921 A TTORNEYS.

Ell, W923i narran ariane ori-rice,

RAY A. MORTALE, QYliCIS-E, NEW YRK, ASSG-NR TO LOIS '.l.r llIGHALE, OF

`SYRACUSE, NEW YORK.

TIE BEAUTE' FOR CONCRETE FGRMS,

ltpplicaton filed January e, i921. Serial No. 434,983.

To all ici/0m t may caf/acera.'

it known that ller ri.

the llnited States, and a resident in the county of @nondaga and .Bieteot w Yori:`u have invented 'a certain new and useful Tie for Concrete.renza of which. the lollf'ivcing is a speciiicz tion.

This invention has Ator its object a tie brace -lor holflingl theopposing Walls of concrete :tornis in position or in parallelism to eachother1 lwhich tie nrace is particuy simple economical in conetinoJion`remlily placed in position and in which. the parte thereof, not leftinthe co* e l are read y removed, and nrtl oif wail. which is highlyei'iicient and durable in use. r.l-he invention consists the novelfeatures and in the combinations and constructions hereinafter set Jorthand claimed.

ln describingthis invention, reference had to the accompanyingdrawingsin which lilre characters designater cerrespondingi parts in allthe views.

fure l is a vertical sectional view et t "s brace, the contiguous partor Walls oif the forni being shown.

l'ligure 2 is a plan view or parte seen in lTi ligures 3 and 4 arerespectively an end View and an enlarged sectional view of one theblocks or sleeves of this brace 're 5 is a perspective view of thetightening' Wedge. i

lhis tie brace comprises generally, opposieg` blocl-s or sleevesdesigned to lie against the inner opposing faces ofthe walls oi theforms, the bloclrsbeing formed with internal cavities having; lizeyslots in their opposing ends, a tie rod having angular or laterallyturned ends which are kmovable through the lrey slots and int-ointerlockinigv engagement with the end walls of the cavities of thebloclcby relative endivise and turning movements of the tie rod andtheblocks, and means extending through the walls of the forni for pullingthe blocks outwardly against the inner i'aces of the forni. Preferably,this means includes pnll rods Which interlock With the blocks in amanner similar to that in which the `tie rods interlock with the blocks.V

l designates the Vblocks which are here shown as conical in forni `withtheir larger ends or bases disposed outwardly in order *i lie againstthe inner opposing faces 2 oi? the forms each block being provided withan internal cavity 4 having end Walls which are formed with openings forthe tie rod and the tension rods 8 As here shown, preferably, theopenings in :h if the walls 5, G is in the' form of, j 'for cinivenienceis called a keyhole t 9 or l0, that is. a slot extending suballyradially oi the end `Wall of the liiocr; and in order permit a hook tohi fA zerted therethrough and turned to interlock with the end Wall, thetie rod 7 is prfgirided with angular or laterally turned hook v'g "l forenteriifig `the slots 9 upon relatfc cnf the blocks l and to interlockWith the opposing end Walls of the blocks upon a relative turningn'iovenient of the rod to the blocks. The rods@ are provided withsimilar hoolrs l A interlock vii th the end Walls olf the cavity on theor sides 'of the block by siinilar inoreinents. Each block l ispreferably provided with a partition as an internal an` nnlar flange lintermediate the ends thereof i'or spacing the ends oli the rods i', 8.

The rods 8 are drawn endvvise by a `particnlarly simple and cheaplyconstructed Wedge i3 which seen in Fig. il: is U- shaped in crosssection, the Wedge being,r arranged astride the bill lll of the hook atthe outer end of eachfrod 8, the bill le or the hook being substantiallyparallel to the major part of the rod 8.

ililhen rthe wedge is arranged astride the bill lll, the intermediateorback 1.5 thereoiif ir aojalnst the .'frainino' of the iorin l i l5members. i i

@Wing `to the arrangement by Which the interioclinp,1 of the tie rodsand `tension or pull on rods With 'the blocks or inserts 4 is semovement of the rod 7 and 2 at their inner ends arranged to sov iio

eifected, this brace is-readily placed in position when the concrete isset the Wedges, pull rodsand blocks are readily removed. Furthermore.owing to this construction7 and to the Wedge construction the Wholedevice consists of but few parts which are particularly economical inconstriiction.

1n use, after the concrete Wall is hardened the tension rods 8 can bereadily removed upon knocking outot the Wedges 18 and removing the rods8 by a partial turning and endvise movement thereof. rllherea'iter, thewalls of the 'form are removed, the bloclrs or inserts l() displaced andthe holes lett therein filled up with cement.

l/Vhat l claim is:

l. ln a. tie brace for concrete forms, the

combination of a pair of blocks each 'formed with a cavity having aslotted opening at its -end wally a tiered having laterally turnedhoolij shaped ends for interlocking in the cavitiesot the blocks byrelative endvvise and turning movements ot' the blocks and the `tie rodsto pass the hooks through the slotted openings and to engage thehook-shaped encs with the inner faces ot the end Walls ot the cavities7and ineans for tightening the blocks in position, substantially as and-tor the "purpose described.

2. 1n a tie brace ior concretel forms, the

lcombination of a pair of blocks, each formed with a cavity having a keyslot in one end i iv'allwa tierod having laterally turned hook shapedends arranged to enter the slot-s `in` the opposing Wallsot the blocksand interlock theieif-vith in the recess by a relative endwise andturning movement of the blocks and the tie rods, tension rods and havinghooks at their inner ends arranged to interlock in vthe cavities ot' theblocks through the outer end Walls thereof, and means for drawing thelast mentioned rods outwardly, substantially as and for the purpose setforth. i

8. 1n a tie brace for concrete forms, the combination of a pair ofblocks each formed with a cavity having key slots at their ends, a tierod having laterally turned hook shaped ends arranged to enter the slotsin the opposing` ends of the blocks and inter-y loclr in the cavitiesthereof by a relative rotation of the blocks and the tie rod,y rods ihaving hooks at their inner ends arranged to interlock in the cavitiesof the blocks through the key slots in the outer ends oi` the block, andmeans vfor drawing the las-t mentioned rods outwardly7 substantially asand for the purpose specified.'

et. In a tie brace for concrete forms? the combination ot a pair ofblocks, each formed with a cavity having openings at its end Walls, atie rod arranged to interlock at its ends in the cavities of the blockby a relative endvvise and turning movement of the Lerares Y rod and theblocks, additional rods arranged end to end With the tie rod and havingmeans at their inneil ends arranged to interlock in the cavities oi theblocks respectively by relative endvvise and rotary movement of suchrods and the blocks, and means for .tighteningthe last mentioned rods,substantially as and tor theV purpose set forth.

' 5. In a tie brace tor concrete forms, the combination ot a pair ofblocks, each formed with a cavity and with, a key slot at the outer endof the cavity` a tie rod connecting the blocks, and rods'arranged inalinemnt with the ends ot the tie rod and having hooks t their innerends arranged to interlock in the cavityroi the block through the keyslots by relative endwisc andr rotary movei'nent of the rods and theblocks, substantially as a nd for the purpose described.v

i'. ln a tie brace tor concrete forms, the

combination ot a form, a pair lot 4blocks bearingv against inneropposing faces of the form and each having an internal cavity formedwith vkey slots' in the end Walls thereoy a tie iod'having*laterallyturned hook shaped ends arranged to enter the key slots and interloclredwith the ivalls of the cavities ot the blocks by relative endivise androtary movements of the tie rod and the ibloclrs. pull rods extendingthrough Lthe Walls of the form and having laterally turned hoolrs at itsinner ends arranged to interlock in thev cavities of the blocks throughthe hey slots in the outer end ivalls ot the cavities ot the block byrelative end-4 ivise and rotary movements of the blocks in the pullrods, the pull` rods being formed Y ith yhooks at their outer endshaving their bills arranged substantially parallel to such rods` andlul-shaped Wedges arranged astride the bills ot the` last mentionedhooks rvwith` one inclined surface ot each Wedge bearing against thebend ot the contiguous and the intermediate or bach of the U-shapedforniation against the'iorm, substaiitially as and icor the purposedescribed.

ln testimony whereof, 1 have hereunto signed my naine, at Syracuse, inthe ,county oi? Onondaga and State of NeuT Yorln this 30th dayotNovember, .1920. i

Y RAY A fMoHALE.

